Answer:
24. 4y-8
25. 15x -y-11
26. 4+3x+25y
Step-by-step explanation:
24. 5y-8-y
Combine like terms
5y-y-8
4y-8
25. 3x-y+12x-11
3x+12x-y-11
15x -y-11
26. y+4+3(x+8y)
Distribute
y+4+3x+3*8y
y+4+3x+24y
4+3x+25y